Small Narrow Subwoofer

jcmjrt · 20th October 2007, 03:22 PM

A month plus ago, I had posted about wanting to get a sub to crossover with my BLH 12" Red Tannoys. The space for a sub was just too small and nothing would work well. I've done some reworking of the speaker/space so I have a little bit more room....not a lot...but wondered if it might be enough to reach the desired result.

The outside space is 8 3/4" tall, 18" wide and 19" deep. The height could probably creep up to 9" if necessary.

What I want is a sub to go up to 125HZ and down to about 40 HZ that is fast and good for 2 channel music. The sub would reside under each speaker.

I'm a good woodworker so a complex box isn't a problem. I know very little about speaker design. I'm not a moneybags but I like the mids/high smoothness of these speakers enough to spend fairly freely (if necessary) to get some decent bass and make them work for me.

moray james · 20th October 2007, 03:36 PM

a Ripole design.

jcmjrt · 20th October 2007, 04:33 PM

I'm not stuck on any particular design or product. Could you elaborate on the ripole design?

moray james · 20th October 2007, 05:57 PM

My Ripole Project

Lord_Humongous · 20th October 2007, 07:04 PM

How about 2 (one per side) closed box (With eq. of course.) with the Tang-Band w8q-1071? It can do without a lot of volume if your stretched for space.

jcmjrt · 21st October 2007, 02:55 PM

The back of the speaker will be angled to a wall so I was thinking that the drivers would need to be on the front or create a problem with the wall. Maybe I'm wrong? I understand that multiple drivers can help get better response with a small space so that's definitely a possibility.

I read the ripole info but I don't know how to model a speaker. I have a macintosh computer and can't run windows programs and most of the modeling software seems to be written for windows.

I saw a design from a couple of months ago that looked interesting. It had dual drivers and was like a transmission line/horn speaker and looked like it might almost work but it was about 2 foot deep and I've only got about 19". I don't know if the design would work with a shorter path.

Cal Weldon · 21st October 2007, 04:05 PM

Fuzzmeasure is made for mac.

http://mac.softpedia.com/get/Audio/FuzzMeasure.shtml

jcmjrt · 21st October 2007, 04:27 PM

Fuzzmeasure looks like a nice piece of measurement software to help one dial in a speaker at the end but I didn't see anything about modeling components to get a possible/probable design.

20th October 2007, 03:22 PM	#1
jcmjrt diyAudio Member Join Date: Mar 2005 Location: SF Bay	Small Narrow Subwoofer A month plus ago, I had posted about wanting to get a sub to crossover with my BLH 12" Red Tannoys. The space for a sub was just too small and nothing would work well. I've done some reworking of the speaker/space so I have a little bit more room....not a lot...but wondered if it might be enough to reach the desired result. The outside space is 8 3/4" tall, 18" wide and 19" deep. The height could probably creep up to 9" if necessary. What I want is a sub to go up to 125HZ and down to about 40 HZ that is fast and good for 2 channel music. The sub would reside under each speaker. I'm a good woodworker so a complex box isn't a problem. I know very little about speaker design. I'm not a moneybags but I like the mids/high smoothness of these speakers enough to spend fairly freely (if necessary) to get some decent bass and make them work for me.

20th October 2007, 03:36 PM	#2
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	you might consider... a Ripole design. __________________ moray james

20th October 2007, 05:57 PM	#4
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	do a search on this forum. Here is just one active thread right on the main page. My Ripole Project __________________ moray james

20th October 2007, 07:04 PM	#5
Lord_Humongous diyAudio Member Join Date: May 2007	How about 2 (one per side) closed box (With eq. of course.) with the Tang-Band w8q-1071? It can do without a lot of volume if your stretched for space. __________________ "In a world gone mad, only a lunatic is truly insane..." - H.J.S.

21st October 2007, 04:05 PM	#7
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Fuzzmeasure is made for mac. http://mac.softpedia.com/get/Audio/FuzzMeasure.shtml __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting


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20th October 2007, 04:33 PM	#3
jcmjrt diyAudio Member Join Date: Mar 2005 Location: SF Bay	I'm not stuck on any particular design or product. Could you elaborate on the ripole design?

21st October 2007, 02:55 PM	#6
jcmjrt diyAudio Member Join Date: Mar 2005 Location: SF Bay	The back of the speaker will be angled to a wall so I was thinking that the drivers would need to be on the front or create a problem with the wall. Maybe I'm wrong? I understand that multiple drivers can help get better response with a small space so that's definitely a possibility. I read the ripole info but I don't know how to model a speaker. I have a macintosh computer and can't run windows programs and most of the modeling software seems to be written for windows. I saw a design from a couple of months ago that looked interesting. It had dual drivers and was like a transmission line/horn speaker and looked like it might almost work but it was about 2 foot deep and I've only got about 19". I don't know if the design would work with a shorter path.

21st October 2007, 04:27 PM	#8
jcmjrt diyAudio Member Join Date: Mar 2005 Location: SF Bay	Fuzzmeasure looks like a nice piece of measurement software to help one dial in a speaker at the end but I didn't see anything about modeling components to get a possible/probable design.

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